mirror of
https://github.com/mozilla/gecko-dev.git
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100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "xpcprivate.h"
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#include "nsString.h"
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#include "nsIObjectOutputStream.h"
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#include "nsIObjectInputStream.h"
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#include "nsJSPrincipals.h"
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#include "plstr.h"
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#include "nsXPIDLString.h"
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#include "nsCOMPtr.h"
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#include "nsIJSRuntimeService.h"
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#include "nsIServiceManager.h"
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#include "nsMemory.h"
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#include "nsStringBuffer.h"
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// for mozilla::dom::workers::kJSPrincipalsDebugToken
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#include "mozilla/dom/workers/Workers.h"
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NS_IMETHODIMP_(MozExternalRefCountType)
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nsJSPrincipals::AddRef()
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{
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MOZ_ASSERT(NS_IsMainThread());
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NS_PRECONDITION(int32_t(refcount) >= 0, "illegal refcnt");
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nsrefcnt count = ++refcount;
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NS_LOG_ADDREF(this, count, "nsJSPrincipals", sizeof(*this));
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return count;
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}
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NS_IMETHODIMP_(MozExternalRefCountType)
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nsJSPrincipals::Release()
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{
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MOZ_ASSERT(NS_IsMainThread());
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NS_PRECONDITION(0 != refcount, "dup release");
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nsrefcnt count = --refcount;
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NS_LOG_RELEASE(this, count, "nsJSPrincipals");
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if (count == 0) {
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delete this;
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}
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return count;
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}
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/* static */ bool
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nsJSPrincipals::Subsume(JSPrincipals *jsprin, JSPrincipals *other)
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{
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bool result;
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nsresult rv = nsJSPrincipals::get(jsprin)->Subsumes(nsJSPrincipals::get(other), &result);
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return NS_SUCCEEDED(rv) && result;
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}
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/* static */ void
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nsJSPrincipals::Destroy(JSPrincipals *jsprin)
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{
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// The JS runtime can call this method during the last GC when
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// nsScriptSecurityManager is destroyed. So we must not assume here that
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// the security manager still exists.
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nsJSPrincipals *nsjsprin = nsJSPrincipals::get(jsprin);
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// We need to destroy the nsIPrincipal. We'll do this by adding
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// to the refcount and calling release
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#ifdef NS_BUILD_REFCNT_LOGGING
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// The refcount logging considers AddRef-to-1 to indicate creation,
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// so trick it into thinking it's otherwise, but balance the
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// Release() we do below.
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nsjsprin->refcount++;
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nsjsprin->AddRef();
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nsjsprin->refcount--;
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#else
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nsjsprin->refcount++;
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#endif
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nsjsprin->Release();
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}
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#ifdef DEBUG
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// Defined here so one can do principals->dump() in the debugger
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JS_EXPORT_API(void)
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JSPrincipals::dump()
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{
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if (debugToken == nsJSPrincipals::DEBUG_TOKEN) {
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nsAutoCString str;
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static_cast<nsJSPrincipals *>(this)->GetScriptLocation(str);
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fprintf(stderr, "nsIPrincipal (%p) = %s\n", static_cast<void*>(this), str.get());
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} else if (debugToken == mozilla::dom::workers::kJSPrincipalsDebugToken) {
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fprintf(stderr, "Web Worker principal singleton (%p)\n", this);
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} else {
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fprintf(stderr,
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"!!! JSPrincipals (%p) is not nsJSPrincipals instance - bad token: "
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"actual=0x%x expected=0x%x\n",
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this, unsigned(debugToken), unsigned(nsJSPrincipals::DEBUG_TOKEN));
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}
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}
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#endif
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